..However, the predictive utility of serum 25OHD diminished after 10 years. In addition, the relationship appeared to be linear when major osteoporotic fracture risk was considered but quadratic when hip fracture risk was assessed...

..FNBMD was higher in NHANES 2005-2008 than in NHANES III, but between-survey differences varied by age, sex, and race/ethnicity. The likelihood that FNBMD has improved appears strongest for older white women...

Hip fracture risk in older US adults by treatment eligibility status based on new National Osteoporosis Foundation guidance

..There are certain conditions, such as lactation, during which calcium intake does not appear to influence bone. Other factors that may influence the effect of calcium on bone include bone-specific genotypes and physical activity...

Multiple imputation of missing dual-energy X-ray absorptiometry data in the National Health and Nutrition Examination Survey

..Of particular interest is that insufficiency occurred fairly frequently in younger individuals, especially in the winter/lower latitude subsample. Our findings support continued monitoring of this vitamin in the U.S. population...

Serum 25-hydroxyvitamin D status of the US population: 1988-1994 compared with 2000-2004

..S. women, examine whether osteoporosis risk factors account for this relationship, and evaluate the likelihood that women at high risk of osteoporosis due to family history report preventive behaviors...